Mercedes W177 Door Rear Right O/S A-Class Mountain Grey Metallic - 787

Listing details and visual condition of the part

Possible scratches and paint chips – condition as shown in the product photos.

The offer applies to the bare door – without handle, window, lock, trims, or any other accessories.

There is an option to purchase a complete door for an additional fee of 80 GBP.

Mercedes W177 Door Rear Right O/S A-Class Mountain Grey Metallic is an original body component from the Doors and door panels category, designed for the precise replacement of the factory side panel. This solution is intended for users who expect to maintain a consistent body line, correct geometry, and an aesthetic paint match with the rest of the vehicle's bodywork.

Specifications and technical data

• SKU: A1777301400-MG
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1777301400
• Substitutable numbers: A1777301400, A 177 730 14 00
• Location on the vehicle: Rear, Right
• Category: Doors & Door Skins

Purpose and fitment

The presented item is a complete rear right exterior door dedicated to the Mercedes W177 body, which is the current generation of the A-Class. The vehicle placement is defined as rear, right side, which allows for clear identification of the correct mounting position on the car. Thanks to the factory construction, compatibility with the side body line, character lines, and panel gaps is maintained.

Characteristics of the Mountain Grey Metallic paint

The door is finished in Mountain Grey Metallic (code 787), characteristic of modern Mercedes A-Class configurations. The metallic coating provides a subtle yet dynamic look that harmonizes well with the W177 body line. Using the original shade facilitates matching with the vehicle's existing paintwork, which limits the scope of any potential paint jobs required after installation.

Structural function and role in the bodywork

As a component from the Doors and door panels group, this panel plays a key role in protecting the side of the body and maintaining the structural rigidity of the vehicle. A correctly selected rear right door:

• ensures proper alignment of the sills and side pillars,
• enables correct seating of seals and windows,
• influences proper closing and cabin tightness,
• allows for the preservation of the factory aerodynamics of the side body section.

Benefits of using an original used component

Original doors sourced from dismantling are a solution that combines OEM technical fitment with a more favorable cost compared to new body panels. A used component retains its factory geometry, thanks to which it:

• facilitates the adjustment of gaps between the door, fender, and pillar,
• minimizes the need for additional bodywork,
• allows for faster installation in workshop conditions.

This type of solution is particularly useful for post-accident repairs, parking damage corrections, and side body renovations where preserving the original Mercedes construction is a priority.

Application in professional service and body repair

The rear right door for the Mercedes W177 in Mountain Grey Metallic will prove effective both in specialized body and paint shops and in workshops dealing with comprehensive body restoration. The component allows for:

• precise replacement of a damaged panel without interfering with the structure of the sills and pillars,
• limiting the scope of filling and straightening,
• maintaining a consistent aesthetic of the vehicle's side after repair.

If you are planning a comprehensive repair or upgrade of the side body zone in your Mercedes and need other elements from the same group, such as door skins, exterior panels, or door frames, check the available parts in the Mercedes Doors and door panels category.

Additional information and knowledge about used parts

When selecting used body components, it is worth knowing the specifics of working with second-hand panels, their preparation for painting, and the principles of assessing sheet metal condition. A broader perspective on the use of used components in the automotive industry – from bodywork to mechanical sub-assemblies – can be found in the article Audi on second-hand parts – tuning and repairs without loss of quality, which shows how to consciously use the secondary market without sacrificing reliability and functionality.